Went to Lowes for the 1 1/4" dowel for rolling the LE. Cut a small 6" piece off the roll for the smaller LE at the top of the Rudder. NOTE: If dowel diameter is too small, i.e. 1"; the leading edge radius will be too small with the edges meeting in a V, if the diameter is too large, i.e. 1 1/2" the LE radius will be too large with the edges meeting with a large gap, i.e not flush. I used a pipe wrench and vise grips which allowed me to relax and hold rolled LE skin in position as all the metal slowly stretched (solo operation). Duct tape was all I used on the skin and dowel. I also used my fingers to final shape the last 1/2" of the skins to make a nice overlap (See progression images) Be patient, learn YOUR technique. I also etch primed the skins due to the overlap both on the LE and the Rudder counterweight. Bought the "Harbor Fright" pneumatic riveter which after adding oil and practicing on scrap, worked just fine (used a rag over outlet as it sneezes oil when tilted on its side)